Revert "Change funswitch to funroll"

This reverts commit 90bd7059c1da0140fff85e905546f58d9ec23974.
Revert "build miniz alongside libz"

This reverts commit d72796ebbc21f76cd351be815e4fbef3b02460dc.
Revert "Implement Auto Feedback Directed Optimization Support"

This reverts commit 63e9106dccf44bd60a0bbaaa3fd1afc153ad21c8.